letterpress-2.1-alt1.noarch freedesktop-desktop info desktop-file-validate utility printed the following message(s): /usr/share/applications/io.gitlab.gregorni.Letterpress.desktop: hint: value item "TextTools" in key "Categories" in group "Desktop Entry" can be extended with another category among the following categories: Utility, or Office; /usr/share/applications/io.gitlab.gregorni.Letterpress.desktop: hint: value item "ImageProcessing" in key "Categories" in group "Desktop Entry" can be extended with another category among the following categories: Education, or Science;